W5DXP wrote:
wrote:
Seems to me that the sinusoidal standing wave with minima and maxima
at the quarter wave points can only arise with single frequency
sinusoidal excitation of the line. Are there other signals which
will produce this result?
Probably not, but that makes sinusoids unique, not magic.
Magic was your moniker not mine. But I am glad that you agree.
What about Ramo and Whinnery's forward Poynting vector and reflected
Poynting vector? Why do you choose to ignore them?
I haven't used them because I don't need them to arrive at an answer.
You need them to keep from making the same mistakes over and over.
I've being using p(t) = v(t) * i(t) and simply arguing that when
v(t) or i(t) is zero for all t, then there is no power.
Poynting won't change a thing. There is no P when E or H is zero.
So the debate can be had with the simpler p(t) = v(t) * i(t).
There is no need to complexify.
....Keith